There are three congruence transformations. Can you name them? No, Optimus Prime is not one.

Reflectional Symmetry 1

In this investigation, you will be discovering the lines of reflection for an equilateral triangle. How many does it have? To start the investigation, click the settings gear and choose Zoom to fit. To further maximize your investigative surface area, click the arrow on the purple toolbar to collapse the Basic Tools menu.

Reflectional Symmetry 2

Repeat the above investigation with a regular hexagon. How many lines of symmetry does it have? To start the investigation, click the settings gear and choose Zoom to fit. To further maximize your investigative surface area, click the arrow on the purple toolbar to collapse the Basic Tools menu.

Rotational Symmetry 1

In this investigation, you will be discovery the angle of rotational symmetry for an equilateral triangle. To start the investigation, click the settings gear and choose Zoom to fit. To further maximize your investigative surface area, click the arrow on the purple toolbar to collapse the Basic Tools menu.

Rotational Symmetry 2

In this investigation, you will be discovery the angle of rotational symmetry for a regular hexagon. To start the investigation, click the settings gear and choose Zoom to fit. To further maximize your investigative surface area, click the arrow on the purple toolbar to collapse the Basic Tools menu.

Geometry 3(A) describe and perform transformations of figures in a plane using coordinate notation;

Geometry 3(B) determine the image or pre-image of a given two-dimensional figure under a composition of rigid transformations, a composition of non-rigid transformations, and a composition of both, including dilations where the center can be any point in the plane;

Geometry 3(C) identify the sequence of transformations that will carry a given pre-image onto an image on and off the coordinate plane; and

Geometry 3(D) identify and distinguish between reflectional and rotational symmetry in a plane figure.